Gotd Ultra Slim Mini 2.4G Wireless Keyboard Mouse Kits Sets White Keyboard Type:2.4G wireless keyboard. Operation distance: 10m. Key numbers: 78 round keys. Wireless carrier frequency: 2402MHZ-2480MHZ. Wireless channel: 16,automatic frequency hopping technique. Key press life: More than 10 million times. Power: 2 *AAA Batteries(Battery not include). Size: 285mm(L)*120mm(W)*22mm(H). Compatible For Windows XP, Vista, Windows 7, ME, 2000 and Mac OS...or latest. The DPI: 1600DPI. 2.4 GHz frequency Working range: 10m 1* AAA battery; (Battery not include) The mini receiver can be inserted into the mouse body No need code matching Color: White. Size: 82mm(L)*44mm(W)*25mm(H)